Carding-engine



(No Model.)-

R. GRIFFIN.

GARDING ENGINE.

No. 587,813 Patented Aug. 10,1897.

0., wAsumo'ron, v. c

UNITED STATES PATENT OFFICE.

RICHARD GRIFFIN, OF HOLYOKE, MASSACHUSETTS.

CARDING-ENGINE.

SPECIFICATION forming part of Letters Patent No. 587,813, dated August10, 1897.

Application filed September 28, 1896. Serial No. 607,132. (No model.)

To aZZ whom it may concern.-

Be it known that I, RICHARD GRIFFIN, a citizen of the United States ofAmerica, residing at Holyoke, in the county of Hampden and State ofMassachusetts, have invented new and useful Improvements inOarding-Engines, of which the following is a specification.

This invention relates to carding-engines, and has for its object theprevention of the accumulation of waste fiber between the ends of themain cylinder and its lining and in the space between the under side ofthe tops and the periphery of said lining and between the ends of thelicker-in roll and its guard or cap and between the said roll and itsbonnet; and the invention consists of devices applied to the ends of thelicker-in roll for the purpose above named, all as hereinafterdescribed, and pointed out in the claims. 7 a

In the drawings forming part of this speci fication, Figure 1 is anelevation, partly in section, of one end of the main cylinder andlicker-in roll of a carding-engine. Fig. 2 is a perspective View of aring adapted to be fitted over each end of the licker-in roll. Fig.

3 is a plan view of one end of a licker-in roll having said ring appliedthereto and showing also a portion of the main cylinder. Fig. 4 is aview similar to Fig. 3, showing the relation of the end of the licker-inroller to the main cylinder before the application of my improvement tosaid roll. Fig. 5 is a perspective view of the top of the main cylinderand showing the position of the tops relative to said cylinder-lining.Fig. 6 is a section through the licker-in roll and its bonnet.

Referring to the drawings, A represents the main cylinder of acarding-engine.

A represents a portion of the frame of the machine.

B represents the licker-in roll; 8, its bonnet.

0 represents a ring applied to each end of the licker-in roll.

D represents the wooden lining, so called, fitted in between the ends ofthe main cylin-' der and the frame A, and E represents the tops of thecarding-engine.

The drawings represent portions of a cotton-carding engine, and in thisspecification the description of the invention will apply moreparticularly to this class of machines;

tance from each end thereofsay from line 2' to the end of the rollarefree from fiber, and

by the much greater speed of rotation of the main cylinder as comparedwith the speed of the licker-in roll a draft of air is generated, whichpasses through the vacant spaces between the teeth on the ends of saidroll and is directed against the ends of said main cylinder, which areapproximately opposite or in the same plane with the ends of saidlickerin roll. Said draft or current of air draws in with it into thespace 4 between the ends of the main cylinder A and its lining D andinto the space 6 under the'ends 5 of the tops E, which pass close to theperiphery of said lining, the loose floating fibers always present neara carding-engine, and also draws loose fibers from the edges of the lap3, near the ends of the licker-in roll, which fibers accumulate in saidspaces above named in quantities sometimes sufficient to clog the main Acylinder. Such accumulations of waste are a serious source of annoyanceand loss not only on account of the loss of material, but also becauseby the rotary motion of the cylinder in close proximity to the fixedparts said waste is rolled up into balls or tufts which frequently passthrough the card and become part of the finished roving, thus making an,

imperfect yarn.

The device forming the subject of this invention obviates all of theabove objections, and the application thereof to a card results in avery considerable saving of fiber and in the production of a roving freefrom the balls or tufts above mentioned and is constructed and appliedas follows: In applying this device to a carding-machine the licker-inroll is removed and the teeth thereof cut off flush with the face of theroll from each end'thereof toward the center for a sufficientdistancesay from the end of the roll to about the line ICO 2, Figs. 3and 4to permit of the placing on each end of the said roll a ring 0,such as is illustrated in Fig.2 of the drawings and shown in its properposition on one end of said roll in Figs. 1 and 3. This ring may be madeof any material of suitable hardness, but preferably of metal, and isturned to such internal diameter as to make it fit snugly on the ends ofsaid licker-in roll, and the thickness of the walls of said ring issubstantially equal to the height of the teeth of said roll from theface thereof to the points of the said teeth, whereby when the roll isplaced in its position in the card the exterior surface of the ring 0and the points of the teeth will be in the same plane and will lieinclose proximity to the points of the teeth of the card-clothing withwhich the main cylinder is covered.

In Figs. 3 and 4 thecotton lap3 (indicated by cross-hatching) is shownbetween: the teeth of the licker-in roll and the teeth of the maincylinder, and it is seen that said ring occupies the space on said rollformerly occupied by the teeth thereof which received necotton, owing tothe impracticabiiity of applying said lap to. the fnl lwidth of saidroll. It

is thus seen thatthe space through which the current of air-is drawninto the main cylinder is, entirely stopped ed by the application of thesaid ring G to the ends of the; roll B, and loose fiebers cannot bedrawn into said card, and all: of the parts thereof a re-keptsubstantially free. from accumulati-ons. of waste, as described- Afurther-advantage-resulting from the. application of the said rings: 0to it will not accumulate if the; rings 6 are not i applied on saidroll, forifi the: said ringsfare i not therev the waste passesintothemain cylinder, as aboveset forth. To-stopthisaccui .The means preferablyused in closing this space is one or more strips of leather 12, or somesimilar material, rivetedor otherwise secured to the inside surface ofthe said bonnet, so that said material will bear lightly on the rings 0when the bonnet is setdown in %position. I-nFig. 1 said bonnet is shownin longitudinal section, and in- Fig. 6 in crossisection, through! oneof said rings Said bonnetvrests on the caps H, Fig. 1*, as is cw.jtomary in cards of this class, and said strips 12 do not bear with anyappreciable weight onsaid rings.

Having thus described my inventien what ;I claim, and desire tosecu-reby Letters; Patent, is

gin-g rings: on each end thereof, as; described, gcom'bi-nedwith thebonnet for said roll hav- -,ing. strips, as 12, secured tortheinnerswrfim i thereof, above and. in close proximity to grin-gs,substantially as set forth.

I 2. In a-= carding-engine, in combination, a licker-in roll havin-gfaringgon each end there of between the. teeth: thereon and the'end of 1theroll, said rings: having. a circa inferential Zsurface substantiallyin planewith. the exitremities of said teeth thereon, and the main 5cylinder of saidenginehavi-ng cloth-ingthere? Eon whose borders,adjoining the ends: of the" isaid' cylinder, extend over the surfiacesof said li'cke-r-in-roll rings, substantially" as: set

;forth. I RICHARD GRIFFIN.

Witnesses:

K. I. CLEMONS,

J. D. GARFIELD.

1.v A licker-i-n roll. forcarding-engineshav-

